Changeset 7d6c9a6 for chapter07

Timestamp:

10/23/2008 11:12:34 PM (16 years ago)

Author:

DJ Lucas <dj@…>

Branches:

10.0, 10.0-rc1, 10.1, 10.1-rc1, 11.0, 11.0-rc1, 11.0-rc2, 11.0-rc3, 11.1, 11.1-rc1, 11.2, 11.2-rc1, 11.3, 11.3-rc1, 12.0, 12.0-rc1, 12.1, 12.1-rc1, 6.4, 6.5, 6.6, 6.7, 6.8, 7.0, 7.1, 7.2, 7.3, 7.4, 7.5, 7.5-systemd, 7.6, 7.6-systemd, 7.7, 7.7-systemd, 7.8, 7.8-systemd, 7.9, 7.9-systemd, 8.0, 8.1, 8.2, 8.3, 8.4, 9.0, 9.1, arm, bdubbs/gcc13, ml-11.0, multilib, renodr/libudev-from-systemd, s6-init, trunk, xry111/arm64, xry111/arm64-12.0, xry111/clfs-ng, xry111/lfs-next, xry111/loongarch, xry111/loongarch-12.0, xry111/loongarch-12.1, xry111/mips64el, xry111/pip3, xry111/rust-wip-20221008, xry111/update-glibc

Children:

7f89db8

Parents:

701d318f

Message:

Checked in Alexander Patrakov's changes for the console page, and related bootscripts update.

git-svn-id: ​http://svn.linuxfromscratch.org/LFS/trunk/BOOK@8697 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

File:

• chapter07/console.xml (modified) (4 diffs)

chapter07/console.xml

@@ -85 +85 @@
         map to load. E.g., in order to load the <quote>lat1-16</quote> font
         together with the <quote>8859-1</quote> application character map
-        (as it is appropriate in the USA), <!-- because of the copyright sign -->
+        (as it is appropriate in the USA), 
+        <!-- because of the copyright sign -->
         set this variable to <quote>lat1-16 -m 8859-1</quote>.
-        If this variable is not set, the bootscript will not run the
-        <command>setfont</command> program, and the default VGA font will be
-        used together with the default application character map.</para>
+        In UTF-8 mode, the kernel uses the application character map for
+        conversion of composed 8-bit key codes in the keymap to UTF-8, and thus
+        the argument of the "-m" parameter should be set to the encoding of the
+        composed key codes in the keymap.</para>
+
       </listitem>
     </varlistentry>
@@ -184 +187 @@
 
     <listitem>
-      <para>There is no pre-made UTF-8 Russian keymap, therefore it has to be
-      produced by converting the existing KOI8-R keymap as illustrated
-      below:</para>
+      <para>The following example illustrates keymap autoconversion from
+      ISO-8859-15 to UTF-8 and enabling dead keys in Unicode mode:</para>
 
 <screen role="nodump"><userinput>cat &gt; /etc/sysconfig/console &lt;&lt; "EOF"
@@ -192 +194 @@
 
 UNICODE="1"
-KEYMAP="ru-ms"
-LEGACY_CHARSET="koi8-r"
-FONT="LatArCyrHeb-16"
+KEYMAP="de-latin1"
+KEYMAP_CORRECTIONS="euro2"
+LEGACY_CHARSET="iso-8859-15"
+FONT="LatArCyrHeb-16 -m 8859-15"
 
 # End /etc/sysconfig/console</literal>
@@ -205 +208 @@
       by the next key) or define composition rules (such as: <quote>press
       Ctrl+. A E to get &AElig;</quote> in the default keymap).
-      Linux-&linux-version; in UTF-8 keyboard mode assumes that accented
-      characters produced via dead keys or composing are in the Latin-1 range
-      of Unicode, and it is impossible to change this assumption. Thus,
-      accented characters needed for, e.g., the Czech language, can't be typed
-      on Linux console in UTF-8 mode (but files containing these characters can
-      be displayed correctly). The solution is either to avoid the use of
-      UTF-8, or to install the X window system that doesn't have this
-      limitation in its input handling.</para>
+      Linux-&linux-version; interprets dead keys and composition rules in the
+      keymap correctly only when the source characters to be composed together
+      are not multibyte. This deficiency doesn't affect keymaps for European
+      languages, because there accents are added to unaccented ASCII
+      characters, or two ASCII characters are composed together. However, in
+      UTF-8 mode it is a problem, e.g., for the Greek language, where one
+      sometimes needs to put an accent on the letter <quote>&alpha;</quote>.
+      The solution is either to avoid the use of UTF-8, or to install the
+      X window system that doesn't have this limitation in its input
+      handling.</para>
     </listitem>